SLAMMING QUASI-STATIC ANALYSIS OF AN INCAT 98-m HIGH-SPEED WAVE PIERCING CATAMARAN.

摘要

A “Reverse Engineering” approach to investigate slamming loads on large high-speed wave piercers is used inrnconjunction with trials data and finite element analysis. Trials data are used to develop the loading conditions duringrnsevere slamming events in terms of the vessel motions and immersion. The underlying wave loads are applied to arnglobal FE model, in addition to a complementary slamming load. The longitudinal and transverse slam load distributionrnwas based on pressure measurements during model tests. The load location and magnitude were then systematicallyrnchanged until the best match between trials and FE strains was achieved. The results show that the comparison methodrnwith trials is critical and suggests that FE dynamic analysis is required to fully understand and develop realisticrninterpretation of slamming loads during trials.